The coolant pressure inside the engine block can reach 70+psi at high rpm before the thermostat fully opens. This will cause a corroded frost plug to leak. The BD rear frost plug is able to be seal the leak without the need to hammer out the old frost plug. We recommend installing the rear frost plug plate when the transmission is removed. The plate can be installed with the transmission in place, however the surface finish on the back of the motor is critical and must be checked prior to use.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1989-1993	Dodge	D250	Base
1989-1993	Dodge	D350	Base
1994-2002	Dodge	Ram 2500	Base
1994-2002	Dodge	Ram 3500	Base
1989-1993	Dodge	W250	Base
1989-1993	Dodge	W350	Base